US5510023A - Oil recycling apparatus with a recirculating filtration line - Google Patents
Oil recycling apparatus with a recirculating filtration line Download PDFInfo
- Publication number
- US5510023A US5510023A US08/288,739 US28873994A US5510023A US 5510023 A US5510023 A US 5510023A US 28873994 A US28873994 A US 28873994A US 5510023 A US5510023 A US 5510023A
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- United States
- Prior art keywords
- oil
- reservoir
- tube
- pipe
- recycling apparatus
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004064 recycling Methods 0.000 title claims abstract description 11
- 238000001914 filtration Methods 0.000 title description 10
- 230000003134 recirculating effect Effects 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 7
- 150000007513 acids Chemical class 0.000 claims description 7
- 239000003599 detergent Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 38
- 210000005069 ears Anatomy 0.000 description 2
- 239000010913 used oil Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000007542 Paresis Diseases 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 208000012318 pareses Diseases 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/001—Filters in combination with devices for the removal of gas, air purge systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/018—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements ring shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/885—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices with internal recirculation through the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/18—Heating or cooling the filters
- B01D35/185—Heating or cooling the filters comprising a vaporizing unit
Definitions
- This invention relates to an apparatus for recycling oil that has been removed from a vehicle of some type such as an automobile or tractor.
- the invention has a container with an access lid for inserting the oil to be processed.
- a heater is provided to insure that the oil will be of a temperature that it will be properly processed.
- a filter system is included which is mounted on top of the container.
- a pump moves the oil from the bottom of the container to the bottom of the filter system. Pressure then forces the oil through the filter system to a pipe which moves the oil back to the container for another cycle. Oil is continuously recycled from the container, through the filter and back to the container for several hours until the oil is clear. It is then ready for removal and reuse.
- FIG. 1 is a cross section of the apparatus
- FIG. 2 is a top full view of the lid for the filter system illustrated in FIG. 1.
- a reservoir referred to generally by arrow 10 has a top 11, bottom 12, a front portion 13, rear portion 14, and sides 15 (only one of which is illustrated).
- Top portion 11 has attached thereto an entry tube 16 with a cap or lid 17 for inserting the oil into reservoir 10.
- Tube 16 could also be a hinged door, for example.
- a thermostaticly controlled heater 20 is mounted through front portion 13 and attached by means of screws 22.
- a seal (not shown) is placed around the attachment location to prevent leakage of oil to the outside of the unit. Heater 20 is connected to a source of electrical power through a wire 21.
- a filtering chamber generally referred to by 25 is constructed by welding or otherwise attaching a tube 26 to top portion 11.
- a central pipe 27 is mounted axially in tube 26 and through top portion 11 in a manner to provide fluid communication from filtering chamber 25 to reservoir 10.
- a disc 28 is attached to the interior of tube 26 so that the normal axis of the disc is aligned with the axis of tube 26.
- Disc 28 has an opening 29 of a diameter to snugly fit over the outside of tube 22.
- Disc 28 also has a plurality of openings or holes 30 to provide for the passage of oil from a lower chamber 31 formed by the walls of tube 26, disc 28 and top 11.
- a filtering element 32 fills the space between the interior wall of tube 26 and the exterior wall of central pipe 27.
- the length of central pipe 27 is made to extend at least to the top of filtering element 32.
- a lid 34 is placed over the top of tube 26 and is anchored by a plurality of bolts 35.
- Lid 34 has a plurality of pares of ears 37 which are adapted to receive bolt 35 which is pivoted about its attachment anchor 38 until bolt 35 is in the slot formed by the pair of ears 37 until it is vertical at which time an wing-nut 40 is placed over screw 35 and tightened.
- a seal 41 keeps the gasses in the unit.
- a breather tube 42 provides an exit for water vapor. Breather tube 42 is connected through piping indicated by line 60 to a canister 61 as indicated by arrow 62.
- Canister 61 is filled with a detergent to collect all the acids and water and vapors from filtering chamber 25.
- An filter retaining disc 23 is similar to disc 28 and made in the same manner with holes 24 for the passage of oil therethrough.
- a retaining tube 18 has holes or openings 19 so that the oil accumulating in upper chamber 65 can pass into the central pipe 27.
- a pump 45 is connected through a pipe 46 to the low end of bottom 12 and to the inlet 47 of pump 45.
- a second pipe 48 is connected from an outlet 49 of pump 45 to the interior of lower chamber 31 at its inlet 50.
- Lid 16 is fastened by lowering lid 16 against top 11.
- Pump 45 is connected to a source of power through a wire 54. It is obvious that switches can be inserted wherever necessary or desired to selectively heat or operate the pump. Pilot lights can also be installed as desired, all of which is well known in the art.
- An drain valve 54 is connected through a pipe 55 to the bottom 12 of reservoir 10.
- the oil recycling apparatus operates in the following manner. Used oil is inserted into the unit by removing cap 17 and pouring the oil to be recycled down tube 16 into reservoir 10 to a level 9 and replacing cap 17. The oil to be recycled will then be deposited into reservoir 10. Reservoir 10 can be designed to hold as few as five quarts or as many as desired. Usually not less than 5 quarts would be recycled since the capacity of most vehicles is five quarts. It is obvious that less than five quarts could be recycled as long as enough is in the unit to fill the pipes and the filter 32, lower chamber 31, pipe 27 and connecting pipes 46 and 48.
- heater 20 is turned on.
- the unit preferably functions by having a thermostaticly controlled switch operate the pump once the oil is to temperature of 140 to 155 degrees fahrenheit.
- oil will pass down pipe 46 to the inlet 47 of pump 45, it is then pressured and expelled from the pump at outlet 49 through pipe 48 to inlet 50 of lower chamber 31. Since the oil is under pressure, it will be forced upwardly through holes 30 and through filter 32, through disc 23 by means of holes or openings 24 to the upper chamber 65. The oil will then flow through openings 19 of tube 18 and into axial tube or pipe 27, back to reservoir 10 where it is again subjected to recycle repeatedly until it is clean.
- disc 23 and retainer tube 19 The basic function of disc 23 and retainer tube 19 is to keep filter element 32 in its place. The pressure of the oil would force filter element 32 out of its proper place against disc 28. Lid 34 keeps retainer tube 18 in position. The usual time for completely recycling five quarts of oil is from three to three and one-half hours.
- the filter is extremely cheep, being only a roll of toilet paper.
- the inside diameter of pipe 26 is sized to accept the roll of toilet paper.
- the outside diameter of pipe 27 is likewise sized to fit the center hole of a roll of paper.
- To remove the roll one simply reaches into pipe 26 with a rod with a small hook or the like (not shown) to the bottom of the filter 32 and pulls up, the hook engaging the filter which slides out easily.
- the top 34 and the retainer tube 18 along with disc 23 are also removed after removing wing-nuts and washers 37. Since the temperature is above 140 degrees fahrenheit, any water or acids in the oil will vaporize and be expelled out of the oil through vent 42 and down pipe 60 to vessel 61 where the water mixed with detergent will accumulate the water, acids and odors from the unit.
- valve 54 is opened and the recycled oil removed.
- One important feature of this invention is that the temperature is low enough that the apparatus can be manufactured of high temperature plastic such as that used to manufacture hot water plastic pipes.
- An extremely economical oil recycling apparatus has been disclosed that can be owned by any person owning any form of vehicle which uses oil.
- the apparatus will completely remove all particulate matter, metal, carbon, water, acids and the like and restore the oil to its former condition. Furthermore, it will prevent a large quantity of contaminate from entering the land fills, sewers, dirt and the like, thereby substantially improving the environment.
Abstract
This invention relates to an apparatus for recycling oil that has been removed from a vehicle of some type such as an automobile or tractor. The invention has a container with an access lid for inserting the oil to be processed. A heater is provided to insure that the oil will be of a temperature that it will be properly processed. A filter system is included which is mounted on top of the container. A pump moves the oil from the bottom of the container to the bottom of the filter system. Pressure then forces the oil through the filter system to a pipe which moves the oil back to the container for another cycle. Oil is continuously recycled from the container, through the filter and back to the container for several hours until the oil is clear. It is then ready for removal and reuse.
Description
Several patents have been issued in the past relating to the reconditioning of oil, all of these patents, however, are either mounted in some kind of a vehicle or very expensive to build and use.
Devices which are mounted in vehicles for the reconditioning of used oils which are circulated in the automobile are the U.S. Pat. No. 1,981,089 to Jesse J. Carpenter, which illustrates an inlet from the vehicle oil source, a pipe which conveys the oil to a filter unit, to a settling reservoir and then back to the engine; U.S. Pat. No. 5,112,479 issued to Vichai Srimongkolkul, is a unit which is a one time pass through filter system which is connected to an oil source for filtering, the filtered product is stored in a separate container; U.S. Pat. No. 3,954,611 issued to Elvie L. Reedy is a patent similar to the U.S. Pat. No. 5,112,479 U.S. Pat. No. 2,027,876 issued to Robert H. Pennebaker, is another patent which provides oil filtering from a remote source and returns the oil to said source. Paper filters are illustrated in the U.S. Pat. No. 5,080,791 which illustrates the use of paper towels for the filtering element, but speaks of the use of toilet paper as a useful filtering element. The U.S. Pat. No. 2,425,848 to D. Vawter, U.S. Pat. No. 2,428,486 to F. A. De Puydt, U.S. Pat. No. 5,178,753 to Hermann Trabold and U.S. Pat. No. 2,262,528 to M. Fairlie, et al ar all various filter arrangements similar to those previously discussed. Standard automobile filters such as U.S. Pat. No. 4,454,036 to Shinichi Suzuke, are of the same type except that automobile filters don't have to heat the oil because it is already heated.
This invention relates to an apparatus for recycling oil that has been removed from a vehicle of some type such as an automobile or tractor. The invention has a container with an access lid for inserting the oil to be processed. A heater is provided to insure that the oil will be of a temperature that it will be properly processed. A filter system is included which is mounted on top of the container. A pump moves the oil from the bottom of the container to the bottom of the filter system. Pressure then forces the oil through the filter system to a pipe which moves the oil back to the container for another cycle. Oil is continuously recycled from the container, through the filter and back to the container for several hours until the oil is clear. It is then ready for removal and reuse.
FIG. 1 is a cross section of the apparatus; and,
FIG. 2 is a top full view of the lid for the filter system illustrated in FIG. 1.
Referring to both figures but in particular to FIG. 1, a reservoir referred to generally by arrow 10, has a top 11, bottom 12, a front portion 13, rear portion 14, and sides 15 (only one of which is illustrated). Top portion 11 has attached thereto an entry tube 16 with a cap or lid 17 for inserting the oil into reservoir 10. Tube 16 could also be a hinged door, for example. A thermostaticly controlled heater 20 is mounted through front portion 13 and attached by means of screws 22. A seal (not shown) is placed around the attachment location to prevent leakage of oil to the outside of the unit. Heater 20 is connected to a source of electrical power through a wire 21.
A filtering chamber generally referred to by 25 is constructed by welding or otherwise attaching a tube 26 to top portion 11. A central pipe 27 is mounted axially in tube 26 and through top portion 11 in a manner to provide fluid communication from filtering chamber 25 to reservoir 10. A disc 28 is attached to the interior of tube 26 so that the normal axis of the disc is aligned with the axis of tube 26. Disc 28 has an opening 29 of a diameter to snugly fit over the outside of tube 22. Disc 28 also has a plurality of openings or holes 30 to provide for the passage of oil from a lower chamber 31 formed by the walls of tube 26, disc 28 and top 11. A filtering element 32 fills the space between the interior wall of tube 26 and the exterior wall of central pipe 27. The length of central pipe 27 is made to extend at least to the top of filtering element 32. A lid 34 is placed over the top of tube 26 and is anchored by a plurality of bolts 35. Lid 34 has a plurality of pares of ears 37 which are adapted to receive bolt 35 which is pivoted about its attachment anchor 38 until bolt 35 is in the slot formed by the pair of ears 37 until it is vertical at which time an wing-nut 40 is placed over screw 35 and tightened. A seal 41 keeps the gasses in the unit. A breather tube 42 provides an exit for water vapor. Breather tube 42 is connected through piping indicated by line 60 to a canister 61 as indicated by arrow 62. Canister 61 is filled with a detergent to collect all the acids and water and vapors from filtering chamber 25. An filter retaining disc 23 is similar to disc 28 and made in the same manner with holes 24 for the passage of oil therethrough. A retaining tube 18 has holes or openings 19 so that the oil accumulating in upper chamber 65 can pass into the central pipe 27.
A pump 45 is connected through a pipe 46 to the low end of bottom 12 and to the inlet 47 of pump 45. A second pipe 48 is connected from an outlet 49 of pump 45 to the interior of lower chamber 31 at its inlet 50. Lid 16 is fastened by lowering lid 16 against top 11. Pump 45 is connected to a source of power through a wire 54. It is obvious that switches can be inserted wherever necessary or desired to selectively heat or operate the pump. Pilot lights can also be installed as desired, all of which is well known in the art. An drain valve 54 is connected through a pipe 55 to the bottom 12 of reservoir 10.
The oil recycling apparatus operates in the following manner. Used oil is inserted into the unit by removing cap 17 and pouring the oil to be recycled down tube 16 into reservoir 10 to a level 9 and replacing cap 17. The oil to be recycled will then be deposited into reservoir 10. Reservoir 10 can be designed to hold as few as five quarts or as many as desired. Usually not less than 5 quarts would be recycled since the capacity of most vehicles is five quarts. It is obvious that less than five quarts could be recycled as long as enough is in the unit to fill the pipes and the filter 32, lower chamber 31, pipe 27 and connecting pipes 46 and 48.
Once the oil is inserted into reservoir 10, heater 20 is turned on. The unit preferably functions by having a thermostaticly controlled switch operate the pump once the oil is to temperature of 140 to 155 degrees fahrenheit. When the pump is operated, oil will pass down pipe 46 to the inlet 47 of pump 45, it is then pressured and expelled from the pump at outlet 49 through pipe 48 to inlet 50 of lower chamber 31. Since the oil is under pressure, it will be forced upwardly through holes 30 and through filter 32, through disc 23 by means of holes or openings 24 to the upper chamber 65. The oil will then flow through openings 19 of tube 18 and into axial tube or pipe 27, back to reservoir 10 where it is again subjected to recycle repeatedly until it is clean. The basic function of disc 23 and retainer tube 19 is to keep filter element 32 in its place. The pressure of the oil would force filter element 32 out of its proper place against disc 28. Lid 34 keeps retainer tube 18 in position. The usual time for completely recycling five quarts of oil is from three to three and one-half hours.
The filter is extremely cheep, being only a roll of toilet paper. The inside diameter of pipe 26 is sized to accept the roll of toilet paper. The outside diameter of pipe 27 is likewise sized to fit the center hole of a roll of paper. To remove the roll, one simply reaches into pipe 26 with a rod with a small hook or the like (not shown) to the bottom of the filter 32 and pulls up, the hook engaging the filter which slides out easily. The top 34 and the retainer tube 18 along with disc 23 are also removed after removing wing-nuts and washers 37. Since the temperature is above 140 degrees fahrenheit, any water or acids in the oil will vaporize and be expelled out of the oil through vent 42 and down pipe 60 to vessel 61 where the water mixed with detergent will accumulate the water, acids and odors from the unit.
Once the oil has been recycled enough to completely clean the oil, valve 54 is opened and the recycled oil removed.
One important feature of this invention is that the temperature is low enough that the apparatus can be manufactured of high temperature plastic such as that used to manufacture hot water plastic pipes.
An extremely economical oil recycling apparatus has been disclosed that can be owned by any person owning any form of vehicle which uses oil. The apparatus will completely remove all particulate matter, metal, carbon, water, acids and the like and restore the oil to its former condition. Furthermore, it will prevent a large quantity of contaminate from entering the land fills, sewers, dirt and the like, thereby substantially improving the environment.
It is obvious that other filter mediums can be substituted and still be within the scope of the invention, it is also obvious that modifications and changes can be made to the invention as described in the specification and appended claims and still be within the spirit and scope of the invention.
Claims (5)
1. An oil recycling apparatus comprising:
a. a reservoir having sides, inlet means, outlet means, a bottom and a top;
b. tube means attached to said reservoir top defining a closed bottom, said tube means having a removable top and a pipe axially disposed therein, said axial pipe having a first end extending through said reservoir top placing the interior of said tube means in fluid flow communication with the interior of said reservoir by way of openings in a second end;
c. upper and lower filter element retaining means positioned within said tube means and each having a first opening to accommodate said axial pipe and a plurality of second openings to provide a passage for said oil;
d. pump means having an inlet connected to said reservoir bottom and an outlet connected to said tube means between said reservoir top and said lower filter element retaining means for pumping oil from said reservoir to said tube means;
e. temperature control means mounted through said reservoir in a manner to heat said oil; and,
f. filter element means disposed within said tube means between said element retaining means and around said axial pipe, said lower retaining means being spaced a distance from said reservoir top and said upper retaining means being spaced a distance below said openings in said pipe;
whereby oil added to said reservoir is pumped from the bottom of said reservoir to said tube means, then, passing through said plurality of openings in said lower retaining means, through said filter element means, through said upper retaining means, into said pipe openings, and back to said reservoir, having first been heated by said temperature control means.
2. An oil recycling apparatus as claimed in claim 1, wherein said reservoir is formed of a box having vertical sides, a flat top and a sloping bottom, wherein said inlet means is mounted to the top of said reservoir and includes a removable, sealable lid for the addition of oil.
3. An oil recycling apparatus as claimed in claim 1, additionally including a pipe means coupled through said removable top means to a reservoir filled with water and detergent.
4. An oil recycling apparatus as claimed in claim 1, additionally including means coupled to said tube means for the removal of acids and vapor, and means coupled to said removal means for disposing of said acids and vapor.
5. An oil recycling apparatus as claimed in claim 4, wherein said means for disposing of said acids and vapor comprises a vessel which can be filled with water and detergent.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US08/288,739 US5510023A (en) | 1994-08-08 | 1994-08-08 | Oil recycling apparatus with a recirculating filtration line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US08/288,739 US5510023A (en) | 1994-08-08 | 1994-08-08 | Oil recycling apparatus with a recirculating filtration line |
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US5510023A true US5510023A (en) | 1996-04-23 |
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US08/288,739 Expired - Fee Related US5510023A (en) | 1994-08-08 | 1994-08-08 | Oil recycling apparatus with a recirculating filtration line |
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003024557A1 (en) * | 2001-09-17 | 2003-03-27 | Park, Chang-Bog | Apparatus for recycling and supplying lubricating oil |
US20050126968A1 (en) * | 2003-12-10 | 2005-06-16 | Schmidt Paul W. | Oil filtration system |
US8936135B2 (en) | 2010-11-29 | 2015-01-20 | Lincoln Industrial Corporation | Pump having heated reservoir |
US20150101972A1 (en) * | 2012-01-18 | 2015-04-16 | Sal Coco | Cooking oil storage and filtration system |
CN105276362A (en) * | 2015-10-31 | 2016-01-27 | 綦江齿轮达亨科技开发公司 | Gearbox worktable oil filtering system |
CN105268225A (en) * | 2015-10-31 | 2016-01-27 | 綦江齿轮达亨科技开发公司 | Oil filter circulation system of gearbox workbench |
CN105387330A (en) * | 2015-10-31 | 2016-03-09 | 綦江齿轮达亨科技开发公司 | Filtering system of transmission workbench |
CN105771409A (en) * | 2016-04-12 | 2016-07-20 | 张萍 | Novel oil filter based on Internet of Things |
US10376101B2 (en) * | 2012-01-18 | 2019-08-13 | Sal Coco | Cooking oil storage and filtration system |
US10463197B2 (en) | 2012-01-18 | 2019-11-05 | Sal Coco | Cooking oil storage and filtration system |
US10487861B2 (en) * | 2016-08-03 | 2019-11-26 | Caterpillar Sarl | Strainer assembly for a fluid tank |
US11098621B2 (en) * | 2017-07-28 | 2021-08-24 | Ford Global Technologies, Llc | Oil sump assembly with an integrated oil filter |
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2003024557A1 (en) * | 2001-09-17 | 2003-03-27 | Park, Chang-Bog | Apparatus for recycling and supplying lubricating oil |
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US7674387B2 (en) | 2003-12-10 | 2010-03-09 | Komatsu America Corp. | Oil filtration system |
US8936135B2 (en) | 2010-11-29 | 2015-01-20 | Lincoln Industrial Corporation | Pump having heated reservoir |
US10376101B2 (en) * | 2012-01-18 | 2019-08-13 | Sal Coco | Cooking oil storage and filtration system |
US20150101972A1 (en) * | 2012-01-18 | 2015-04-16 | Sal Coco | Cooking oil storage and filtration system |
US10463197B2 (en) | 2012-01-18 | 2019-11-05 | Sal Coco | Cooking oil storage and filtration system |
CN105276362A (en) * | 2015-10-31 | 2016-01-27 | 綦江齿轮达亨科技开发公司 | Gearbox worktable oil filtering system |
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CN105387330A (en) * | 2015-10-31 | 2016-03-09 | 綦江齿轮达亨科技开发公司 | Filtering system of transmission workbench |
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US11098621B2 (en) * | 2017-07-28 | 2021-08-24 | Ford Global Technologies, Llc | Oil sump assembly with an integrated oil filter |
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